Abstract: Disclosed are systems and method or updating full disk encryption (FDE) software on a computer. An example method comprises: obtaining an updated version of the FDE software; blocking operations of the FDE software on a boot drive of the computer; updating one or more components of the FDE software based on the updated version of the FDE software; modifying a booting process of an operating system of the computer to allow execution of a new version of a pre-boot compatibility verification component before the booting process; executing the new version of the pre-boot compatibility verification component, without decrypting and encrypting data on the boot drive, to determine if the boot drive is compatible with the updated FDE software; and if the boot drive is determined to be compatible with the updated FDE software, performing the booting process of the operating system of the computer.

Abstract: Disclosed are systems and method or updating full disk encryption (FDE) software on a computer. An example method comprises: obtaining an updated version of the FDE software; blocking operations of the FDE software on a boot drive of the computer; updating one or more components of the FDE software based on the updated version of the FDE software; modifying a booting process of an operating system of the computer to allow execution of a new version of a pre-boot compatibility verification component before the booting process; executing the new version of the pre-boot compatibility verification component, without decrypting and encrypting data on the boot drive, to determine if the boot drive is compatible with the updated FDE software; and if the boot drive is determined to be compatible with the updated FDE software, performing the booting process of the operating system of the computer.

Abstract: Disclosed are systems and method or updating full disk encryption (FDE) software on a computer. An example method comprises: blocking operations of the FDE software on a boot drive of the computer; installing one or more components of the updated FDE software; deploying an updated pre-boot compatibility verification component of updated FDE software; rebooting the computer and executing, before booting of an operating system, the updated pre-boot compatibility verification component; determining, by the updated pre-boot compatibility verification component, a compatibility of the boot disk with the updated FDE software without decrypting and encrypting the boot disk of the computer by the updated FDE software; if the boot disk is determined to be compatible with the updated FDE software, authenticating a computer user and booting the operating system of the computer; and unblocking one or more operations of the updated FDE software on the boot drive.

Abstract: A method is provided for hypersonic laminar flow control which uses the effect of boundary layer stabilization by an ultrasonically transparent coating. A hypersonic body surface is covered by the coating which absorbs the flow disturbance energy and does not trip the boundary layer flow. In one embodiment, the coating is made from a porous material of regular structure containing cylindrical blind microholes normal to the body surface. In another embodiment, the porous material has random distributions of pore shape and orientation. Extraction of the flow disturbance energy by pores causes stabilization of the boundary layer on the coated surface and leads to laminar-turbulent transition delay. The method can be used to decrease the aerodynamic drag of hypersonic vehicles and reduce heat transfer on vehicle surfaces.